Altera DDR Timing Wizard User Manual
Ddr timing wizard, User guide
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Table of contents
Document Outline
- DDR Timing Wizard
- About this User Guide
- 1. About the DDR Timing Wizard
- 2. Getting Started
- 3. Using the dtw_timing_analysis.tcl Script
- Introduction
- Timing Closure Process
- Timing Closure Differences in DDR2/DDR SDRAM, QDRII+/QDRII SRAM, and RLDRAM II Interfaces
- Selecting Initial Phase Shifts
- Re-run DTW After First Compile When Using Classic Timing Analyzer
- Ensure the Changes Made Outside Legacy Controller MegaWizard Are Not Erased When the Core is Regenerated
- Decide When to Change Clock Phase Shift
- Changing Clock Phase Shift
- Adjusting Clock Cycle Selections
- Changing Clock Cycles
- Changing the Address/Command Clock Connection and Phase Shift
- Moving the Data Path Registers Closer to the Pins
- Conclusion